<template>
  <el-container class="home-container">
<!--    头部地区-->
    <el-header>
      <div>
        <img src="../assets/images/heima.png" alt="">
        <span>电商后台管理系统</span>
      </div>
      <el-button type="info" @click="logout">退出</el-button>
    </el-header>
<!--    主体地区-->
    <el-container>
<!--      侧边栏-->
      <el-aside :width="isCollapse ? '64px' : '200px'">
        <div class="toggle-button" @click="toggleColl">|||</div>
<!--        侧边栏菜单区-->
        <el-menu background-color="#333744" text-color="#fff" active-text-color="#409EFF"
                 unique-opened :collapse="isCollapse" :collapse-transition="false"
                 router :default-active="activePath">
<!--          一级菜单-->
          <el-submenu :index="item.id + ''" v-for="item in menuList" :key="item.id">
<!--            一级菜单模板区-->
            <template slot="title">
<!--              图标-->
              <i :class="iconsObj[item.id]"></i>
<!--              文本-->
              <span> {{item.authName}} </span>
            </template>
<!--              二级菜单-->
            <el-menu-item :index="'/'+subItem.path + ''" v-for="subItem in item.children" :key="subItem.id"
                          @click="saveNavState('/'+subItem.path + '')">
<!--              二级菜单模板区-->
              <template slot="title">
                <!--              图标-->
                <i class="el-icon-menu"></i>
                <!--              文本-->
                <span>{{subItem.authName}}</span>
              </template>
            </el-menu-item>
          </el-submenu>
        </el-menu>
      </el-aside>
<!--      右侧内容布局-->
      <el-main>
<!--        路由占位符-->
        <router-view></router-view>
      </el-main>
    </el-container>
  </el-container>
</template>

<script>
export default {
  data () {
    return {
      // 左侧菜单数据
      menuList: [],
      iconsObj: {
        125: 'el-icon-user-solid',
        103: 'el-icon-s-check',
        101: 'el-icon-s-goods',
        102: 'el-icon-s-order',
        145: 'el-icon-s-marketing'
      },
      // 是否折叠
      isCollapse: false,
      // 被激活的链接地址
      activePath: ''
    }
  },
  // 创建生命周期函数
  created () {
    this.getMenuList()
    this.activePath = window.sessionStorage.getItem('activePath')
  },
  methods: {
    logout () {
      window.sessionStorage.clear()
      this.$router.push('/login')
      this.$message.warning('退出成功')
    },
    // 获取菜单列表
    async getMenuList () {
      const { data: res } = await this.$http.get('menus')
      if (res.meta.status !== 200) return this.$message.error(res.meta.msg)
      this.menuList = res.data
      console.log(res)
    },
    // 点击按钮折叠和展开菜单
    toggleColl () {
      this.isCollapse = !this.isCollapse
    },
    saveNavState (activePath) {
      window.sessionStorage.setItem('activePath', activePath)
    }
  }
}
</script>

<style lang="less" scoped>
  .home-container {
    height: 100%;
  }
  .el-header{
    background-color: #333744;
    display: flex;
    justify-content: space-between;
    padding-left: 0;
    align-items: center;
    color: #ffffff;
    font-size: 20px;
    >div{
      display: flex;
      align-items: center;
    }
    span{
      margin-left: 15px;
    }
    img{
      margin-left: 15px;
    }
  }
  .el-aside {
    background-color: #333744;
    .el-menu {
      border-right: none;
    }
  }
  .el-main {
    background-color: #ffffff;
  }
  .toggle-button {
    background-color: #4A5064;
    font-size: 10px;
    line-height: 20px;
    color: #fff;
    text-align: center;
  }
</style>
